"You don't wanna know," Future Xenest said, "I've been at death's door multiple times, yet the desire to achieve our most fondest wish kept me going... it eventually culminated into me obtaining my Berserker form... as every time he taunted me, my anger... all that anger and hatred I held against him grew and grew... until it eventually manifested itself into that form... and the scars that I got from it are the sole reminder of what has happened for so long..."
With that, Future Xenest showed off traces of what used to be festering wounds on his upper back which had healed over to become mere scars... scars which were sadly enough permanent with some patches appeared almost permanently burned... There was no pain and the scars were thoroughly maintained and cleaned, effectively preventing the possibility of those wounds being infected... but still...